Why is there advantages using a "remote load" say of 15000N
applied evenly onto say a beam flange as opposed to to nominating a
"normal force" of 15000N in this case does it have the same
effect.
Remote loads are normally added to a beam when the load is..
well remote to the beam. That is the load is some distance from the
beam flange or whatever body the load is being applied to. Suppose
you have a load applied to a piece of pipe that is 30 m long and is
anchored at a support. Say you are interested only in what happens
at the anchor located at the end of the pipe. You could model the
30 m of pipe (SI units sorry) and apply the load at the required
position. It would take a lot less time if you could model the
piping at the end where it is anchored and replace the length of
pipe with a remote load that passes through its C of G.